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Finding the Fourth Proportional to 199,617.80, 299,426.70 and 104,811.35

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Solution

The fourth proportional to 199,617.80, 299,426.70 and 104,811.35 is: 157,217.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,617.80 : 299,426.70 = 104,811.35 : x
  2. Step 2: Convert to fraction form
    199,617.80/299,426.70 = 104,811.35/x
  3. Step 3: Cross multiply
    199,617.80x = 299,426.70 × 104,811.35
  4. Step 4: Simplify right side
    199,617.80x = 31,383,316,653.05
  5. Step 5: Solve for x
    x = 31,383,316,653.05/199,617.80
  6. Step 6: Final answer
    x = 157,217.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.